Inkwell



Patented Nov. 22, 1932 PATENT FFCE CARL TANNEWITZ, OF GRAND RAPIDS, MICHIGAN INKWELL Application filed. April 6, 1932. Serial No. -693,501.

The main objects of this invention are:

First, to provide an improved inkwell for school desks and the like made of unbreakable non-corrodible material and one which is not easily disassembled.

Second, to provide an inkwell having these advantages which is economical in its parts and the assembly thereof.

Third, to provide an improved method of 0 making and assembling inkwells.

Objects pertaining to details and economies of my invention will denitely appear from the description to follow. The invention is defined in the claims.

A structure which embodies the features of my invention is clearly illustrated in the accompanying drawing in which Fig. 1 is a fragmentary side elevation partially in section on line 1-1 of Fig. 2 of a satisfactory form or embodiment of my invention.

Fig. 2 is a plan view, parts being broken away and sectioned to show structural details.

Fig. 3 is a plan View of the cover.

Fig. 4 is a vertical section of a modified form or embodiment of my inkwell on line 4-4 of Figs. 5 and 6.

Fig. 5 is a fragmentary vertical section on line 5-5 of Fig. 4.

Fig. 6 is a plan view with the closure opened.

Fig. 7 is a prespective view of the closure. The embodiment of my invention shown in Figs. 1, 2 and 3 comprises a receptacle 1 formed of suitable molding composition., preferable vulcanizable or hard rubber composition, and is provided with an enlarged portion 2 at its upper end adapted to t 0 within an opening in a desk. The receptacle has a supporting flange 3 at its upper end. The receptacle is formed with an annular internal shoulder 4 spaced from but adjacent to the rim of the receptacle and with an in terna-l annular groove 5 above this shoulder the bottom of the groove being preferably inclined.

The disk-like cover 6 is also formed of composition, preferably rubber composition so that it may be molded in proper shape, and

provided with a peripheral rib 7 fitting within the groove 5, the face of the rib being inclined o1' beveled to fit the inclined bottom of the groove. The cover has an opening 8 therein for the introduction of a pen and a transverse dove-tailed groove 9 receiving the closure slide 10. This closure slide has its edges inclined to slidably fit within the groove.

In assembling the receptacle is removed from the mold while still warm and expanded to some extent, the cover being inserted so that upon shrinking of the receptacle it closes upon the cover, locking it in place as shown in Fig. 1. The closure 1() is inserted before 65 the cover is put into place and, the ends of the groove being closed by the walls of the receptacle, all the parts are securely retained in assembled relation.

In the modilied form or embodiment of my invention shown in Figs. 4 to 7, inclusive, the receptacle 11 has an external shoulder 12 with an external groove 18 above the shoulder. The cover 14 fits within the receptacle and has a downwardly facing annular groove 15 receiving the rim of the receptacle and a flange 16 resting upon the shoulder and provided with an internal-rib 17 engaging the groove 13, so that when the parts are assembled while still warm and expanded they shrink together and are securely locked in place. In this embodiment the closure 18 for the opening 19 is slidably mounted in the dove-tailed groove 2O which is in this instance formed in the underside of the cover.

Asin the embodiment previously described, the closure is inserted before the cover and receptacle are assembled so that the closure is retained by the closing of the ends of the groove by the walls of the receptacle. The opening 19 is of such size that the receptacle can be cleaned through the opening.

With the parts thus formed and assembled the structure may be very economically produced and the parts are securely retained in assembled relation, which is a very desirable feature in inkwells designed for school purposes.

The method of assembly minimizes cost and results in a very superior structure.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. An inkwell comprising a receptacle of hard rubber composition having an internal annular shoulder spaced from but adjacent the top thereof and an internal annular` groove above the shoulder, a disk-like cover of hard rubber composition disposed on said shoulder and having a peripheral rib engaging said groove in said receptacle, said cover having an opening adjacent one edge thereof and a transverse dove-tailed groove of a width exceeding the diameter of said opening and extending from edge to edge of the cover, and a closure slidable in said roove, the ends of the groove being closed y the walls of the receptacle whereby the closure is retained.

2. An inkwell comprising a receptacle having an external annular shoulder adjacent its upper end and an external annular groove above said shoulder, a disk-like cover fitting Within said receptacle and having an annular recess receiving the upper edge of the receptacle, the cover having an annular flange resting upon said annular shoulder and interlocking with said annular groove of said receptacle, the cover having an opening adjacent one edge thereof and a dove-tailed groove extending transversely across the cover, and a closure slidable in said groove, the ends of the groove being closed by the walls of the receptacle whereby the closure is retained.

3. An inkwell comprising a receptacle of composition having an annular groove adjacent its rim, a disk-like cover of composition fitting within said receptacle and having an annular flange interlocking with said annular groove of said receptacle, the cover having an opening adjacent one edge thereof and a dove-tailed groove extending transversely across the cover, and a closure slidable in said groove, the ends of the groove being closed by the walls of the receptacle whereby the closure is retained.

4. An inkwell comprising a receptacle having an annular groove adjacent its rim, a disk-like non-resilient cover fitting within said receptacle and having an annular flange interlocking with said annular groove of said receptacle, the cover having an opening adjacent one edge thereof and a dove-tailed groove extending transversely across the cover, and a closure slidable in said groove, the ends of the groove being closed by the walls of the receptacle whereby the closure is retained.

5. An inkwell comprising a receptacle having an annular groove adjacent its rim, a nonresilient cover fitting within said receptacle and having an annular fiange interlocking with said annular groove of said receptacle,

the cover having an opening and a groove extending transversely across the cover, and a closure for said opening slidable in said groove.

In witness whereof I have hereunto set my hand.

CARL E. TANNEVVITZ. 

